20202030109 has 4 divisors (see below), whose sum is σ = 20202402460. Its totient is φ = 20201657760.

The previous prime is 20202030071. The next prime is 20202030113. The reversal of 20202030109 is 90103020202.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6165704484 + 14036325625 = 78522^2 + 118475^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202030109 - 2⁹ = 20202029597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20202030809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87282 + ... + 219139.

It is an arithmetic number, because the mean of its divisors is an integer number (5050600615).

Almost surely, 2^20202030109 is an apocalyptic number.

It is an amenable number.

20202030109 is a deficient number, since it is larger than the sum of its proper divisors (372351).

20202030109 is an equidigital number, since it uses as much as digits as its factorization.

20202030109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372350.

The product of its (nonzero) digits is 216, while the sum is 19.

The spelling of 20202030109 in words is "twenty billion, two hundred two million, thirty thousand, one hundred nine".